Oki OFFICE 87 - Manual (Page 17)

Installation 17
5 Place the image drum unit back into your MFP machine. Ensure
that the tabs on both sides of the image drum are inserted correctly
as shown below. Then press down firmly on both ends of the image
drum until it snaps into place.
Warning: Never expose the image drum unit to light for more than
5 minutes. Never expose the image drum unit to direct
sunlight. Always hold the image drum unit by the ends.
Never touch the surface of the green drum inside the
image drum unit.
6 Remove the protective plastic cover from the toner well in the image
drum unit.
Warning: Be careful when handling the toner cartridge. Do not let
toner spill onto your clothing or other porous materials. If
you experience any problems with toner, see the Safety
section at the beginning of this booklet.